Serving tray set



FIG. 1 is a top, front perspective view of a serving tray set showing our new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The surface ornamentation of the serving tray set shown in broken lines form no part of the claimed design. The long dash-short dash bolded broken line in FIG. 7 indicates the bounds of the claimed design and otherwise forms no part of the claimed design. 

CLAIM The ornamental design for a serving tray set, as shown and described. 